Jim Simons Renaissance Technologies
Jim Simons is the founder of Renaissance Technologies, one of the most successful quantitative hedge funds in the world. Before his career in finance, he served as a mathematics professor and made significant contributions to differential geometry. Simons applied his analytical expertise to develop sophisticated, algorithm-driven trading strategies, earning consistently high returns for investors.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class A
GOOGL
|
+$546M |
| 2 |
Microsoft
MSFT
|
+$480M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$362M |
| 4 |
Meta Platforms (Facebook)
META
|
+$350M |
| 5 |
Coca-Cola
KO
|
+$266M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Robinhood
HOOD
|
+$1.04B |
| 2 |
Palantir
PLTR
|
+$800M |
| 3 |
Apple
AAPL
|
+$516M |
| 4 |
Netflix
NFLX
|
+$326M |
| 5 |
NVIDIA
NVDA
|
+$313M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 21.71% |
| 2 | Healthcare | 15.16% |
| 3 | Consumer Discretionary | 11.81% |
| 4 | Communication Services | 10.53% |
| 5 | Financials | 9.27% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
FFWM
1776
DELISTED
First Foundation Inc
FFWM
| $3.07M | ﹤0.01% |
551,100
+304,986
| +124% | +$1.68M |
|
1777
Lantheus
LNTH
$6.59B
| $3.07M | ﹤0.01% |
+59,831
| New | +$3.74M |
|
1778
Knowles
KN
$3.29B
| $3.07M | ﹤0.01% |
131,500
-187,174
| -59% | -$3.83M |
|
|
GLDD
1779
DELISTED
Great Lakes Dredge & Dock
GLDD
| $3.06M | ﹤0.01% |
255,056
-129,332
| -34% | -$1.5M |
|
1780
Marchex
MCHX
$82M
| $3.06M | ﹤0.01% |
1,692,164
-10,604
| -0.6% | -$21K |
|
1781
Avient
AVNT
$4.25B
| $3.05M | ﹤0.01% |
+92,558
| New | +$3.22M |
|
1782
Canadian Pacific Kansas City
CP
$82.2B
| $3.04M | ﹤0.01% |
40,860
-355,800
| -90% | -$27.2M |
|
1783
Intrepid Potash
IPI
$493M
| $3.04M | ﹤0.01% |
99,471
+64,200
| +182% | +$2.02M |
|
1784
Mitek Systems
MITK
$877M
| $3.04M | ﹤0.01% |
311,238
+50,638
| +19% | +$498K |
|
1785
Viemed Healthcare
VMD
$350M
| $3.04M | ﹤0.01% |
447,000
+36,700
| +9% | +$248K |
|
|
GRSD
1786
Grandstand Limited Ordinary Shares
GRSD
$80.4M
| $3.03M | ﹤0.01% |
370,800
+114,316
| +45% | +$1.11M |
|
|
SRTA
1787
Strata Critical Medical Inc
SRTA
$522M
| $3.03M | ﹤0.01% |
598,386
-113,300
| -16% | -$501K |
|
1788
Invesco CurrencyShares Euro Currency Trust
FXE
$342M
| $3.02M | ﹤0.01% |
27,900
-19,900
| -42% | -$2.15M |
|
|
HSAI
1789
Hesai Group
HSAI
$2.86B
| $3.02M | ﹤0.01% |
107,500
+58,300
| +118% | +$1.43M |
|
|
HIMX
1790
Himax Technologies
HIMX
$2.66B
| $3.02M | ﹤0.01% |
342,061
-177,100
| -34% | -$1.52M |
|
|
TBRG
1791
DELISTED
TruBridge
TBRG
| $3.02M | ﹤0.01% |
149,651
-43,225
| -22% | -$909K |
|
1792
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.72B
| $3.01M | ﹤0.01% |
+22,800
| New | +$2.94M |
|
1793
Northwest Natural Holdings
NWN
$2.14B
| $3.01M | ﹤0.01% |
66,900
+23,200
| +53% | +$962K |
|
1794
Glacier Bancorp
GBCI
$6.5B
| $3M | ﹤0.01% |
61,600
-395,992
| -87% | -$18.6M |
|
1795
State Street SPDR Portfolio S&P 500 Growth ETF
SPYG
$55.3B
| $2.99M | ﹤0.01% |
28,600
-59,800
| -68% | -$5.96M |
|
1796
Cohu
COHU
$2.81B
| $2.99M | ﹤0.01% |
146,907
+79,307
| +117% | +$1.6M |
|
1797
Regenxbio
RGNX
$711M
| $2.99M | ﹤0.01% |
309,486
-425,714
| -58% | -$3.76M |
|
1798
Arcus Biosciences
RCUS
$3.75B
| $2.98M | ﹤0.01% |
219,300
-148,800
| -40% | -$1.55M |
|
1799
Ingles Markets
IMKTA
$1.65B
| $2.98M | ﹤0.01% |
42,858
-28,026
| -40% | -$1.87M |
|
1800
State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF
SPTM
$14.1B
| $2.98M | ﹤0.01% |
36,900
+22,600
| +158% | +$1.76M |
|
Similar funds
Jim Simons's Q3 2025 Portfolio in Review
As of Q3 2025, Jim Simons held 4,038 positions worth $75.8B, up 0.77% from $75.2B the previous quarter. Its ten largest holdings account for 11% of the portfolio.
Jim Simons withdrew a net $5.41B in Q3 2025, closing 581 positions and reducing 1,457 holdings. Its most notable exit was GE Aerospace, an estimated $235M position sold in full.
By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in Alphabet (Google) Class C worth $419M.
- Jim Simons's largest Q3 2025 buy was Alphabet (Google) Class C: 1,720,002 shares worth $419M.
- Jim Simons added most to Alphabet (Google) Class A in Q3 2025, an estimated $546M increase.
- Jim Simons's biggest Q3 2025 reduction was Robinhood, cutting an estimated $1.04B.
- Jim Simons fully exited GE Aerospace in Q3 2025, selling an estimated $235M.
- Jim Simons's ten largest holdings make up 11% of its $75.8B portfolio in Q3 2025.
- Jim Simons opened 516 new positions and closed 581 in Q3 2025.
- Jim Simons's portfolio value rose 0.77% quarter-over-quarter to $75.8B.
Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.